Carcinoembryonic antigen blood test. Last reviewed: September 20, 2013. The CEA test measures the level of carcinoembryonic antigen (CEA) in the blood. CEA is a protein normally found in the tissue of a developing baby in the womb.The blood level of this protein disappears or becomes very low after birth.he CEA test measures the level of carcinoembryonic antigen (CEA) in the blood.
If the pH of your blood falls below 7.35, the result is a condition called acidosis, a state that leads to central nervous system depression. Severe acidosis-where blood pH falls below 7.00 - can lead to a coma and even death. If the pH of your blood rises above 7.45, the result is alkalosis.
pH measures how acidic or alkaline things are, with 0 being most acidic and 14 being most alkaline. A pH of 7 is neutral. The pH of the human body varies depending on the body part itâs associated with. For example, our stomachs must be acidic in order to digest food, with pH ranging from 1.35-5. Blood, on the other hand, is slightly alkaline with a pH of 7.35-7.45. A womanâs vagina is generally acidic, but becomes more alkaline around ovulation, making it more hospitable to sperm.